Sifting-closure for vessels.



H. S. RODGERSx SIPTING CLOSURE FOR VESSEL-S.

APPLICATION FILED APILZO, 1910.

Patented Eek 23 L 31 To all whom it may concern:

UNITED STATES PATENT. orrren.

HOWARD S. RODGERS, OF NEW YORK, N. Y., ASSIGNOR TO SINGLE SERVICE PACKAGE CORPORATION OF AMERICA, 013 NEW YORK, N. Y., A CORPORATION OF NEW JERSEY.

SIFTING-CLOSURE FOR VESSELS.

i Application filed April 20, 1910. Serial No. 556,639.

Be it known that I, HOWARD S. RODGERS, a citizen ofthe United States, residing at Xew York city, in the county of New York and State of New York, have invented certain new and useful Improvements in SiftingClosures for Vessels; and I do hereby declare the following to be a full, clear, and exact description of the invention, such as will enable others skilled in the art to which it appertains to make and use the same.

This-invention relates to sifting tops for vessels, and has for its object the provision of sifting holes which may .bereadily opened, and yet at the same time will be ordinarily securely closed so that no danger will be incurred of losing the contents of the.

. can.

i To these ends, the invention consists in the noveldetails of construction and combination of parts, more fully hereinafter disclosed and particularly pointed out in the claims- Referring to the accompanying drawings forming a part of this specification in which like numerals refer to like parts in all the views: Figure 1 is'a View partly in section of a vessel provided with a top made in ac cordance with my invention. Fig. 2 is a plan View of the parts shown in Fig. 1. Fig. 3 is an. enlarged detail view showing the dies for forming the perforations in my can top. Fig. 4c is an enlarged detail view of one of the perforations employed in my invention. Fig. 5 is a top plan yiew of the parts shown in Fig. 4:, and Fig. 6 is a bottom plan view of said parts.

1 represents a vessel which may be made of any suitable material, and 2 a sifting closure therefor which may likewise be of any suitable material and construction.

3 represents sifting perforations in the closure 2 which are preferably formed by cutting'out disks 4t around a large portion of their circumference leaving a portion 5 integral with the can top 2.

Heretofore in making sifting openings for can tops, has been customary to punch the metal through and to leave an integral portion such as 5 to form a hinge for the disk 4. The punching operation,however. causes the disk 4 to be bent to a greater or less degree outof the plane of the top 2, and unless said disk 4 Wasbent back into the plane of the disk 2, the contents of the can would be lost during shipment owing to the perforation 3 being open. This bending operation, however, besides being inconvenient, would often cause the hinge 5 to break, thus leaving the perforation 3 entirelv open.

Specification of Letters Patent. Patented Feb, 28, 1911 I Especially would this be the case when the perforation 3 was made through an imper-' feet spot in the metal. In order to'avoid the above objections I do not cut the perforations entirely through the metal, but, on the other hand, provide a cutting 'die 6 with cutting edges 7 which are very slightly shorter than the tlll'CkIlQSSOftllG metal to be operated upon. The top 2 is thereupon supported upon a die 9 which is provided with very slight depressions 8 opposite the cutting edges 7, and when the two dies come together the metal is not severed entirelythrough asindicated in Fig. 3, but it is provided with a very slight skin-like-bulge 8 which serves to hold the parts together, but

which may with a slight pressure from the thumb nail or from any'convenient instru ment be broken and thereby permit the perforation 3 to be opened. In other words, as

clearly shown in Fig. 4, should pressure be brought upon the disk 4, the metal would break along the circular bulge 8, and the said disk twould be forced down into thedotted line' position shown in Fig. I, thereupon completely opening the'perforation 3.

when formed from ordinary metal and therefore, notrouble is experienced at all in completing the sifting perforations by pushing in the disks. Furthermore, I regard a groove out into themetal as much superior to a displacement of the whole disk-like body by a shearing action, and for the reason that the frangible webs can be more certainly and uniformly made and, therefore, they can be made thinner and more easily ruptured. The circular cut-10, which extends only partially through the metal asshown, need not extend with a plurality of disks partially through @111 'angleof 360 degrees, but may lea \e the integral tongue 5 to form a hinge as has been heretofore customary.

It obvious that the operation of only p'zirtia lil cutting through the metal as indicated a ove, can be rapidly and inexpensively done, and that the cost of producing the" sifting openings by the means disclosed lis'trifling. It is also obvious that this same procedure applies to other sheet material as-Well as to metalgfand it useful in many 5 cases when applied to fibrous material, such as paper;

hat I claim is:

1. A sifting closure for vessels provided severed from the material of the closure by grooves leaving integral readily frangible circular bulging. skins between said material and said disks, and also leaving integral nnseorcd hinges between said disks and material, snl)-' stantially as described.

2. In a vessel, the combination of a body art anda sifting closure providml with a 

